Diaz Montana, C; Cragg, W; Choudhury, R; Joffe, N; Sydes, M; Stenning, S; (2019) Implementing monitoring triggers and matching of triggered and control sites in the TEMPER study: A description and evaluation of a triggered monitoring management system. Trials , 20 , Article 227. 10.1186/s13063-019-3301-z.